netdev - Re: [PATCH net] net: sched: cbs: Avoid division by zero when calculating the port rate

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-Id: <20191001.095227.1125113002999915056.davem@davemloft.net>
Date:   Tue, 01 Oct 2019 09:52:27 -0700 (PDT)
From:   David Miller <davem@...emloft.net>
To:     olteanv@...il.com
Cc:     vinicius.gomes@...el.com, jhs@...atatu.com,
        xiyou.wangcong@...il.com, netdev@...r.kernel.org
Subject: Re: [PATCH net] net: sched: cbs: Avoid division by zero when
 calculating the port rate

From: Vladimir Oltean <olteanv@...il.com>
Date: Sun, 29 Sep 2019 02:39:48 +0300

> As explained in the "net: sched: taprio: Avoid division by zero on
> invalid link speed" commit, it is legal for the ethtool API to return
> zero as a link speed. So guard against it to ensure we don't perform a
> division by zero in kernel.
> 
> Fixes: e0a7683d30e9 ("net/sched: cbs: fix port_rate miscalculation")
> Signed-off-by: Vladimir Oltean <olteanv@...il.com>

Applied and queued up for -stable.